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Thread: Absorbers

  1. #1 Absorbers 
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    May I know what colours are good absorbers of heat? Sorry if I'm posting in the wrong place!


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  3. #2  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by Qoojay View Post
    May I know what colours are good absorbers of heat? Sorry if I'm posting in the wrong place!
    Black.

    But as you say "colours" in the plural, I guess the answer is, the darker the colour the better it will be. And, possibly, the redder it is. But you would really need to know how well it absorbs infra-red.


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  4. #3  
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    Does the wavelength affect how well it absorbs heat?
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  5. #4  
    Life-Size Nanoputian Flick Montana's Avatar
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    The wavelength of the light?

    Black absorbs heat so well because it absorbs all wavelengths of visible light. If you shine a light through a band 3 filter, a red apple will appear black because it absorbs all the current wavelengths.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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